public class CPU{
	int speed; 
	int getSpeed(){ 
	return speed; 
	}
	public void setSpeed(int speed){
		this.speed = speed;
		}
		}
public class HardDisk{ 
		int amount; 
		int getAmount(){
			return amount; 
			}
			public void setAmount(int amount){
				this.amount = amount;
				} 
				} 
public class PC{ 
				CPU cpu;
				HardDisk HD;
				void setCPU(CPU cpu){ 
				this.cpu = cpu;
				} 
				void setHardDisk(HardDisk HD){
					this.HD = HD; 
					} 
					void show(){ 
					System.out.println("CPU速度："+cpu.getSpeed());
					System.out.println("硬盘容量"+HD.getAmount());
					} 
					} 
public class Test{
						public static void main(String args[]){
							CPU cpu = new CPU(); 
							HardDisk HD = new HardDisk(); 
							cpu.setSpeed(2200);
							HD.setAmount(200);
							PC pc = new PC();
							pc.setCPU(cpu);
							pc.setHardDisk(HD);
							pc.show();
							} 
							}
